It will take an hour at the longest.
这事最多花一小时。
人活得再久生命仍是短暂的。
Do keep it short. Two minutes at the longest.
回答要简短。不要超过两分钟。
He's only away for short periods, a week at the longest.
他只是短期外出，最多一周。
It is only to be used at the longest telephoto setting of the camera in order to avoid vignetting.
只有将在最长的长焦相机的设置使用，以避免晕。
At some 2,300 miles in length, the Mississippi is the longest river in the United States.
密西西比河全长约2300英里，是美国最长的河流。
At some 1,000 miles, the Mackenzie is the longest river in Canada.
麦肯齐河是加拿大最长的河流，全长约1000英里。
The longest track and field event at the Summer Olympics is the 50-kilometer race walk, which is about five miles longer than the marathon.
夏季奥运会最长的田径项目是50公里竞走，比马拉松距离还长大约5英里。
He created paintings of trains between January and March in 1877, at the train station with the longest history in Paris.
1877年一月到三月，他在巴黎历史最悠久的火车站创作了一系列火车画作。
At nearly 3,200 kilometers long, it is the world's longest man-made waterway.
其全长近3200公里，是世界上最长的人工水道。
Four of the top 10 longest rivers flow through China at some point.
十条最长的河流中有四条都流经中国。
The river system of the Mississippi River and the Missouri River is the longest river system in North America at 3,902 miles.
密西西比河和密苏里河水系是北美最长的水系，全长3902英里。
Then came the real test, at one of the longest wave simulators in North America.
然后进行的是现场实验，就在北美最长的一个波浪模拟器里。
The shoppers I studied who took the longest, examining packages, stopping at whatever caught their eye, invariably spent more money.
我所研究的耗时最长的顾客总是花更多钱，他们研究包装、为任何映入他们眼帘的物品而驻足。
The last team to visit that U.S. stationset a world record at the time for longest stay in orbit, 84 days.
最后一批进入美国空间站的宇航员创造了一项最长在轨时间（84天）的世界纪录。
Basic computer skills take — at the very longest-a couple of months to learn.
掌握基本的计算机技能最长也只要一两个月时间。
She lived an estimated 53 years, one of the longest lives recorded at Gombe.
她活了大约有53年，在贡贝记录中是寿命最长的一个之一。
Keepers said Asian elephants have the longest gestation period - at 22 months - of any animal in the world.
动物看护人员说，比起世界上其他动物来，亚洲象有最长的怀孕期——22个月。
The economic expansion will most likely continue at a modest pace, turning into one of the longest ever in peacetime.
经济增长很可能以较小的幅度(适度)增长，成为和平时期以来持续最长的一次经济增长。
The longest waits of the year are for train tickets home at Spring Festival; one friend waited overnight only to be told they weren't even selling tickets to his town.
一年中等待时间最长的队伍是春运的时候；有一位朋友排了一晚上队，排到了才被告知不卖向他家开的火车票。
High-ranking Flo was an attentive, playful mother. She lived an estimated 53 years, one of the longest lives recorded at Gombe.
级别较高的富娄是一位专注且顽皮的妈妈。她活了大约有53年，在贡贝记录中是寿命最长的一个之一。
Not only that, but when a wave threatened to return the seal to danger, the humpback used its massive flipper (at five metres, the longest in the animal kingdom) to nudge it back on.
不仅如此，当一个浪头即将把海豹扫回险境之时，座头鲸还利用它的巨大的鳍状肢(五米长，动物王国中最长的)把它轻轻地推了回来。
The dome used sophisticated window shades to control its inside temperature and also housed the world's longest escalator at the time.
该建筑使用复杂的窗户形状来控制内部温度，它的内部建造了当时世界上最长的电梯。
With a length of over 35 miles, the world's longest train tunnel should become operational at the end of 2017.
这个隧道全长35英里，是世界上最长的火车山体隧道，预计将在2017年年底通车。
One of the longest-living survivors of the condition is Stephen Hawking, the 68-year-old cosmologist, who was diagnosed at the age of 21.
活的最久的患者之一是史蒂芬·霍金，这位68岁高龄的天体物理学家，在他21岁时被确诊患有此病。
"Guinness world Records" lists the longest-lasting bulb in the world as the "Centennial Light" at a fire-station in Livermore, California, which has been burning almost continuously since 1901.
在《吉尼斯世界纪录》中，记载了世界上照明持续时间最长的灯泡——一盏加利福尼亚州利弗莫尔的一个火电站里的“世纪灯”，自从1901年，它几乎就一直亮着。
"Guinness world Records" lists the longest-lasting bulb in the world as the "Centennial Light" at a fire-station in Livermore, California, which has been burning almost continuously since 1901.
在《吉尼斯世界纪录》中，记载了世界上照明持续时间最长的灯泡——一盏加利福尼亚州利弗莫尔的一个火电站里的“世纪灯”，自从1901年，它几乎就一直亮着。
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